Wrench.



A. SZABDOS. WRENCH.

APPLIOATIOH FILED ome, 1911.

WORN-L; ys.

Patented May 7, 19M.

CANADA, AssIGNoii. or EL, CANADA.

WRENCH.

.application led october 6, 1911. Serial No. 653,1d.

Sp'eeieation of Letters Patent.

raieneea May i, wie..

'lh all whom 'maar L iiinary, residing;` at' ovinee of idriiish Columbia,

Be it lniown infn. suhjee'r of ihe iin ew hliehei, i*

Canada. have 'iiiif'eiilei'i eeriain newY and use-' fui linproveuienl's in ii/Trenches7 of which the following a speeiieztion, reference heing had therein lo the accompanying drawings.

This invention relates Lo wrenches, and lhe objects of niif iiiveiilion are i'o furnish a wrench wiih an adg'usting; mechanism' that is protected und not` liable lo injury by-ordinary use7 and so provide a Wrench Wihan adjustable jaw that. can be easily and quiekly shifted and posi'ively looked in an adjusted position.

With the above and other objecis in view, the invention resides in the novel construction, combination and arrangement of paris lio he hereinafter speeilically described vand then claimed.

Reference will now he had to the drawing, -iiheiein Figure 1. is a side elevation of a Wrench in accordance with this invention, Fig. 2 is a vertical 4transverse sectional view of a poriion or' the wrench, Fig. 3 is a cross sectional View of a porzion oi.' the wre1ich,'and Fig. el a horizontal sectional view of the wrench taken on the iine X-X of Fig. 3.

A 'wrench in aceordanre with this invention ooiiiprises a channel-shaped handle 1 having' a hingitudinal channel 2 extending from a point in proximity to thelowerend of the handle to the upper end thereof, and the upper end of the handle terminates in a fixed jaw 3 having` a gripping surface 4. Vlhe handle l. iuliaceni to the jaw 3, has an oil-set portion f1 providing" a reress 6 that is in mniniunieatiou with the rhannel This recess and the hannel l are adapted io be rlosed hy a face plate I suilahly secured to the walls of the handle '1. y

lidably inounied in ihe f'liaiinei E2 against 1the face plate 7 a shank 8 having the upper end thereof provided. with a iw-S7 having a gripping surface lO'eonfI-onting the grippinor surface 4 or' the iaw 3 and eopera-ting therewith iunfripping a nulv or other structure haring at sides or facets. The shank R has a longitudina. sloi ll, for a purpose that will presently appear,

Journaled in the Walls of the recess S are transverse shafis l2 and 13 and upon these shafts are arranged a train of lgears. coinpiising a sn'iall rear wheel 14 Carried by llie shaf l2, u large gear Wheel l5 inounled upon the shaft l2 and meshing' with a small gear wheel 16 mounted upon the shaft 13, and a large gear wheel 17 Carriedv by the 'shaft 13 and meshing with a rack 18 pro-- vided i'herefor upon the shank 8 at one side of the slot ll. i

The Walls of the handle l lind plaie Z are provided with opposiely disposedbosses if) and slidably mounted in these bosses is a push rod 20 having` a rack 2l meshing; with the small gear wheel 14. The push rod Z0 has the outer end thereof provided Willi a button 22, and at a point.' apl'iroximalely intermediate the ends thereof, said push rod has an arin engaged by a Hat spring' 24, secured, as at 25 to theinelined lower wall of the recess 6. This spring' normally mainiains he push rod in an extended position with the shank 8 lowered in the handle l. rlhe push rod Q0 entends through the slot 1l and-an inward movement of said rod arruates the train'o gears io move the shank 8 upwardly in inheliandle` thereby movingthe jaw 9 away'from the jaw 3.

To lock the slianh 8 in an adjusted position, a pusli'pin QG is employed, This pin is slidabli7 mounted in bosses Q7 and 2S. eari'ied by the walls of the handle l and pluie 7 and saidpin.y inlern'iediate the ends thereof. has an arm 29 provided with leeih adapted llo engage the rai'h i8 and hold i'he shank Fw. The aiiii E29 is ni'u'nially maintained in engvageinenl willi ihn rari( lh by a Small ronipression spring' 3() arranged within ihe boss 28 and pressing' against the inner end oiE 1hr push pin. while tlu` outer endol the push pin has a burton 3l lo facililale pushing' ihn pin inwardly lo release lh(x shank ll'v is thought ihal the operation and u1il 'ity oi ihe wreneh will he appar-enf wilhoul further deserii'il'iou. and while in i'he draw# ing ihere-is illustri-:ded a preferred einhodi nient of the invention7 il is lo he understood that the struizlural elenunl's lhereoi are sus ceptible. to suoli vuriaiions -zind inoiilill'uiat-ions as fall within 'l'he seope or' the appended claims.

'1. A wrench of the type described. Coniprisiiig a Channel handle, a jaw carried 'thereby'. a shank slidably mounted .in said hand-le, a jaw carried by the upper .end of shank, a rack carried by said shank Wiehn said handle, a train of gears arranged in said handle and adapted to move said shank, a push rod arranged 1n said handle and adapted to actuate said train of gears, and means arranged in said handle and adapted to lock saidshank in an adjusted position.

2. A Wrench comprising a channel handle, a face plate carried thereby, a jaw carried by the upper end of' said handle, a slotted shank slidably mounted in said handle, a

l jaw carried by the upper end thereof, a rak earried by said shank, a train of gears ar- 1 and adapted to actuate said train of gears, a.

push pin arranged in said handle, and an arm carried by said pin Within said handle y and adapted to loek'said shank in an adjusted posit-ion.

In testimony whereof I afx my signature in the presence of two witnesses.

ANTONY SZABADOS Vitnesses:

CHAs. T. SPENCER, JAMES B. STEWART. 

